Retractable setting-up structure for car display

ABSTRACT

Pins of a display are inserted slidably into slide rails so as to regulate movement of the display. Lying holding portions for holding the display in its lying state via pins, guiding portions along which the pins are shifted up and down together with movement of the pins, and standing holding portions for holding the display in its standing state via the pins are provided in the slide rails respectively. As a result, play of the display can be prevented.

The contents of Application No. TOKUGANHEI 9-23968, filed on Feb. 6,1997 and No. TOKUGANHEI 9-23982, filed on Feb. 6, 1997 in Japan arehereby incorporated by reference.

BACKGROUND OF THE INVENTION

The present invention relates to a display structure installed in avehicle such as a car to be used as a navigation system, etc. and, moreparticularly, a retractable setting-up structure for setting up thedisplay out of the case and retracting it into the case.

A typical car display device includes a navigation display device, a TVset, or the like arranged in the inside of an instrument panel An imagedisplayed on a screen of the navigation display device, the TV set, orthe like is then projected onto a reflector to be monitored or watchedby the driver (or the passenger). Such a so-called heads-up displaydevice is well known (see Patent Application Publication (KOKAI) Hei6-183284 or Patent Application Publication (KOKAI) Hei 6-144081). Thereflector is supported on an upper surface of a front window panel orthe instrument panel of the vehicle.

In the heads-up display device, a display main body is typically putaway in the case when not used, and is pulled out from the case whenused. The display main body and the case are arranged on the uppersurface of the instrument panel. Hence, the upper surface of theinstrument panel is easily heated up to a high temperature by radiationheat of solar light, so that there is a possibility that a display panelsuch as a crystal panel of the display main body is thermally destroyedor damaged.

For this reason, the display panel is protected against the thermaldestruction or thermal damage by putting away the display main body inthe case such that the display panel is put downward in the case intoits lying state, thereby positioning the display panel far from theupper surface of the instrument panel which is heated up to the hightemperature.

Since the display main body must be set up from its lying state bypulling the display main body up from the case when such display mainbody is to be in use, a retractable setting-up structure for retractablysetting up the display main body out of the case has been installed intothe display device.

The retractable setting-up structure for the car display device in theprior art is constructed so that a rotation axis which is fitted to thedisplay main body is connected to a rotational driving source such as amotor and so that an upward/downward moving mechanism which is movedvertically in the case is also connected to the display main body. Therotational driving source and the upward/downward moving mechanism canbe operated at the same time. As a result, if the display main body ismoved upward and downward while being rotated, such display main bodyhas been able to be set repeatedly in its lying state and its standingstate.

SUMMARY OF THE INVENTION

However, according to such retractable setting-up structure in the priorart, there has been a problem that the display main body is set unstablyin either the lying state or the standing state and is thus easilybroken down. Therefore, the display main body is easily renderedinoperative because of play in the retractable structure.

In addition, the rotational driving source and the upward/downwardmoving mechanism as well as a mechanism for cooperating them is needed.As a result, their structures have become complicated and theirassembling procedures have become troublesome.

Therefore, the present invention has been made in light of the aboveproblems in the prior art, and it is an object of the present inventionto provide a retractable setting-up structure for a display which canset or place a display main body stably in both its lying state and itsstanding state, and can be operated by a simple mechanism, and can alsobe easily assembled.

In order to achieve the above object of the present invention, there isprovided a retractable setting-up structure for a display, comprising:

a display including a display panel;

a case for supporting the display such that the display takes repeatedlyan accommodated state an standing state, the display panel being putdownward away when the display is in the accommodated state, the displaypanel being stood to be watched when the display is in the standingstate;

a pin member connecting rotatably a front end of the display in theaccommodated state;

a slide rail into which the pin member is inserted slidably, the sliderail guiding the pin member to move back and forth and upward anddownward; and

a driving source for moving reciprocally the pin member back and forth;wherein

the slide rail includes a lying holding portion, a guiding portion, anda standing holding portion,

the lying holding portion holds the display in the accommodated statevia the pin member,

the pin member is displaced upward and downward along the guidingportion according to their lateral movement, and

the standing holding portion for holds the display in the standing statevia the pin member.

Accordingly, when the pin member is positioned in the lying holdingportion of the slide rail, the display can be held in the accommodatedstate by the lying holding portion. In addition, when the pin member ispositioned in the standing holding portion of the slide rail, thedisplay can be held in the standing state by the standing holdingportion. As a result, the display can be stabilized in both theaccommodated state and the standing state, so that play in the displaycan be eliminated.

In the preferred embodiment of the present invention, the standingholding portion is placed at a higher position than the lying holdingportion.

Accordingly, since the standing holding portion is placed at a higherposition than the lying holding portion, the display can be set uprightsurely on the case.

In the preferred embodiment of the present invention, the driving sourceis a block including a motor therein, the block is engaged with the pinmembers, and the block is moved reciprocally back and forth inside thecase when it is driven by the motor.

Accordingly, the display can be retracted and set up according to themovement of the block as the driving source. In other words, shifting ofthe display between the accommodated state and the standing state can bemade only by the driving source. Hence, sure operation of the displaycan be achieved by a simple mechanism.

In order to achieve the above object of the present invention, there isprovided a retractable setting-up structure for a display furthercomprising:

a rack provided on a bottom of the case so as to extend along a back andforth direction of the case; and

a gear connected with the motor and engaged with the rack.

Accordingly, the block can be moved back and forth when the gear isrotated while being engaged with the rack which is provided in thebackward/forward direction of the case. Because the gear is engaged withthe racks, this movement of the block can be executed firmly withoutslip. Therefore, lying and standing operations of the display can becarried out in a stable condition. In addition, the gear cannot beunexpectedly moved because it is engaged with the rack and thus theaccommodated state and the standing state of the display can bestabilized.

In order to achieve the above object of the present invention, there isprovided a retractable setting-up structure for a display furthercomprising:

a lift-up preventing mechanism provided between the block and the caseto prevent lift-up of the block when the display is in the standingstate.

Accordingly, since lift-up of the block can be prevented by the lift-uppreventing mechanism, the display can be smoothly set upright.

In the preferred embodiment of the present invention, the lift-uppreventing mechanism is composed of a horizontal axis which is formed toproject from side surface of the block, and a horizontal groove which isformed on corresponding inner side surface of the case along its backand forth direction.

In the preferred embodiment of the present invention, a vertical guidegroove is formed on the block, and the pin member is engaged with thevertical guide groove.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing a front layout of a compartmentincluding a retractable setting-up structure for a display according toa first embodiment of the present invention;

FIG. 2 is a perspective view showing a case in FIG. 1 into which thedisplay is fitted;

FIG. 3 is a perspective view showing an instrument panel in FIG. 1before it is fitted into the compartment;

FIG. 4 is a sectional view showing the retractable setting-up structurefor the display in FIG. 1 which is retracted into its accommodated thestate in the case;

FIG. 5 is a sectional view showing the retractable setting-up structurefor the display in FIG. 1 which is set up into its standing state out ofthe case;

FIG. 6 is a side view showing an arrangement of the display in FIG. 1with regard to a tangent line of driver's eyeshot to a front hood;

FIG. 7 is a plan view showing the arrangement of the display in FIG. 1relative to a car body;

FIG. 8 is an enlarged fragmental plan view showing the arrangement ofthe display shown in FIG. 7;

FIG. 9 is a plan view showing a retractable setting-up structure fordisplay according to a second embodiment of the present invention;

FIG. 10 is a sectional view, taken along an X--X line in FIG. 9, showinga sectional shape of the retractable setting-up structure for thedisplay shown in FIG. 9;

FIG. 11 is a sectional view, taken along an XI--XI line in FIG. 9,showing another sectional shape of the retractable setting-up structurefor the display shown in FIG. 9; and

FIG. 12 is a sectional view, viewed from a front side of the vehicle,showing the retractable setting-up structure for the display shown inFIG. 9.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Embodiments of the present invention will be explained in detail withreference to accompanying drawings hereinafter.

(First Embodiment)

FIG. 1 shows a front layout of a compartment including a retractablesetting-up structure for a display according to a first embodiment ofthe present invention.

Meters 4 which are positioned in front of a steering wheel 3 and airoutlets 5 which are positioned on both sides of the meters 4 arearranged on an instrument panel 1 respectively.

An audio set 6 is arranged below the air outlets 5 in the central area(left side in FIG.1) along the width direction of the car body. A fixeddisplay 7 for a multiplex broadcast, etc. is arranged below the audioset 6.

A case 8 which constitutes a part of the instrument panel 1 is fittedonto an upper surface of the instrument panel 1 in the central area(left side in FIG. 1). A display 9 which can be retractably set up by astructure described later is provided in the case 8.

The display 9 has a liquid crystal panel 10 to display images for use innavigation thereon. The display 9 is projected from the case 8 when itis set up.

An operation lever 11 which is used to change ranges of an automatictransmission is provided to extend from a column cover 12 to the centerside (left side in FIG. 1). The column cover 12 is provided coaxiallywith the steering shaft (not shown).

The operation lever 11 can be shifted vertically by the driver. Rangesof the operation lever 11 are set in sequence to a parking position P, areverse position R, a neutral position N, a normal driving position D,load driving positions D1 and D2 from the top.

The display 9 is arranged on the upper surface of the instrumentpanel 1. However, it should be noted that a layout of the display 9 isdecided in a refuge position such that, when the driver in the driver'sseat casts his or her eye at the screen of the display 9, the display 9is not overlapped with the operation lever 11 which is positioned to theparking position P and the driving position D.

The parking position P is a shift for parking the vehicle. In the eventthat the driver in the driver's seat looks at the screen of the display9 to check the destination of the car, etc. during the parking, theoperation lever 11 in the parking position P does not obstruct thedriver's eyeshot looking at navigation images, for example, on thescreen of the liquid crystal panel 10 of the display 9 since theoperation lever 11 is not positioned in the course of the eyeshot of thedriver to the display 9.

The driving position D is a shift for driving the vehicle. In the eventthat the driver in the driver's seat looks at the screen of the display9 to check the current location of the car, etc. during the driving,similarly the operation lever 11 in the driving position D does notobstruct the driver's eyeshot looking at the navigation images, forexample, on the screen of the liquid crystal panel 10 of the display 9since the operation lever 11 is not positioned in the course of thedriver's eyeshot to the display 9.

In the meanwhile, the reverse position R is a shift for reverselydriving the car and the load driving positions D1, D2 are shifts fordriving the car at a low speed. During these positions R, D1, D2, thereis no need of displaying navigation images, for example, on the liquidcrystal 10 of the display 9. Therefore, even if the operation lever 11is positioned in front of the liquid crystal 10 of the display 9, noproblem is caused for the driver.

In this manner, when the operation lever 11 is positioned to the parkingposition P or the driving position D to which the operation lever 11 isfrequently positioned during running, the display 9 is designed to be atthe refuge position such that the operation lever 11 and the display 9are not overlapped with each other in the course of the driver's eyeshotto the display 9. Hence, even if the display 9 is arranged on the uppersurface of the instrument panel 1, the operation lever 11 neverobstructs the driver's eyeshot looking at the display 9, so that thescreen of the display 9 can be readily monitored or watched by thedriver.

Next, a display fitting structure and a retractable setting-up structurefor a display 9 will be explained with reference to FIGS. 2 to 5hereunder.

FIG. 2 shows a case 8 into which the display 9 is fitted. An openingportion 13 from which the display is protruded is formed on an uppersurface of the case 8. This opening portion 13 is normally closed by ahood 17, but it can be opened by rotating the hood 17 upwardly at thesame time when the display 9 should be protruded from the case 8. Wherea reference 22 is a first hood, and a reference 23 is a second hood.

As shown in FIGS. 4 and 5, a rotating plate 18 is placed in the case 8.The rotating plate 18 can be supported rotatably in the case 8 by asupporting axis 19 which is provided over both side surfaces of the case8. The display 9 and the rotating plate 18 are coupled to each other viaconnector pins 37.

Pins 20 are fitted to base end portions (end portions on the supportingaxis 19 side) of the display 9. The pins 20 are engaged slidably withcam grooves 21 which are formed on the case 8.

The cam grooves 21 are formed to become gradually higher towards therear side (right side in FIG. 4) of the vehicle. When the pins 20 arepositioned on the front side of the cam grooves 21, the display 9 can beput away into its lying state (accommodated state) indicated by a chaindouble-dashed line in FIG. 5 in the case 8. On the contrary, when thepins 20 are positioned on the rear side of the cam grooves 21, thedisplay 9 can be set up into its standing state indicated by a solidline in FIG. 5 to be projected from the case 8. In other words, when thepins 20 are moved reciprocally along the cam grooves 21, the display 9can be displaced between its lying state and its standing state.

The pins 20 are coupled to a motor (not shown) via a rack and pinionmechanism (not shown). A rotating motion of the motor is converted intoa linear reciprocating motion by the rack and pinion mechanism to thusslide the pins 20.

When the display 9 is put away into its lying state in the case 8, theliquid crystal panel 10 of the display 9 is positioned adjacent to abottom surface 8a of the case 8.

A ventilating hole 16 is formed in the bottom surface 8a of the case 8so as oppose the liquid crystal panel 10 of the display 9 when thedisplay 9 folded into its lying state.

As shown in FIG. 3, a fitting recess portion 14 is formed on the uppersurface of the instrument panel 1 to have a concave shape. When the case8 is put into the fitting recess portion 14, the case 8 can be combinedintegrally with the instrument panel 1. A through hole 15 is formed inthe fitting recess portion 14. As shown in FIG. 4, the through hole 15is formed in registration with the ventilating hole 16.

Like the above, since the through hole 15 and the ventilating hole 16are formed to coincide with each other in position, the air in thecompartment can be introduced into the case 8 via the through hole 15and the ventilating hole 16. The air in the compartment, when introducedinto the case 8, can be brought into contact with the liquid crystalpanel 10 of the display 9 to thus cool the liquid crystal panel 10. As aresult, even when the instrument panel 1 is increased up to the hightemperature by radiation heat of the solar light, the temperature riseof the liquid crystal panel 10 can be suppressed, so that the liquidcrystal panel 10 can be in no way thermally destroyed or damaged.

Hence, a disadvantage caused because of the high temperature can beovercome when the display 9 is positioned on the upper surface of theinstrument panel 1.

In turn, the hood 17 shown in FIGS. 4 and 5 will be explained hereunder.The hood 17 is composed of two members, i.e., the first hood 22 and thesecond hood 23. The opening portion 13 of the case 8 can be closed bythese hoods 22, 23.

As shown in FIGS. 4 and 5, the first hood 22 has a fitting pin 24 on thebase end side (supporting axis 19 side). The first hood 22 can besupported rotatably to the case 8 by inserting the fitting pin 24 intothe case 8.

Closing springs 26 are fitted to the fitting pin 24 to be wound aroundit. The first hood 22 is pushed towards a closing direction by theclosing springs 26 to close the opening portion 13.

The second hood 23 is supported rotatably to the top end of the firsthood 22 by a connector pin 25. Closing springs 27 are fitted to theconnector pin 25 to be wound around it. The second hood 23 is pushedtowards the closing direction by the closing spring 27.

The closing springs 26, 27 wound around the fitting pin 24 and theconnector pin 25 of the first hood 22 and the second hood 23 aredesigned such that the closing spring 26 has a larger spring force thanthat of the closing spring 27.

Since the spring forces of both the closing springs 26, 27 are selectedto satisfy the above requirement, the first hood 22 and the second hood23 are always held in their closed states when the display 9 is set intoits lying state. Under this closing state, folding of the first hood 22and the second hood 23 at a connecting portion between the second hood23 and the first hood 22, i.e., the connector pin 25 can be eliminated.For this reason, the first hood 22 can be set to be substantiallycoplanar with the second hood 23 to thus improve an outer appearance ofthe hood 17.

A back surface of the first hood 22 is backed with a sheet-like thermalinsulating material 28. In FIGS. 4 and 5, the thermal insulatingmaterial 28 is stuck on the back surface of the first hood 22, but suchthermal insulating material 28 may be provided on a plurality ofportions of the first hood 22. Similarly, the thermal insulatingmaterial 28 may be provided at appropriate portions on the back surfaceof the second hood 23.

A thermal insulating material having air layers therein is preferable asthe thermal insulating material 28. For instance, urethane foam, nonwavefabric made of polypropylene and polyethylene, etc. may be employed asthe thermal insulating material. In this fashion, even if thetemperature of the hood 17 is raised by the solar light, thermal energytransmitted to the inside of the case 8 can be made small by providingthe thermal insulating material 28 on the back surface of the hood 17.Therefore, the display 9 which is put away in the case 8 can beprotected from heating by the solar light.

The display 9 can be set upright to rise out of the hood 17 by slidingthe pins 20 along the cam grooves 21. During this rising-out operation,a back surface of the display 9 is brought into contact with a backsurface of the hood 17 to thus push up the hood 17, so that the hood 17can open the opening portion 13. In order to make this sliding smoothly,rotators 29 are fitted to a top end portion of the back surface of thedisplay 9 and also ribs 30, 31 are provided on the back surfaces of thefirst hood 22 and the second hood 23 so as to face to the rotators 29.

More particularly, when the display 9 is set upright, first the rotators29 contact to the ribs 31 of the second hood 23 and then roll along theribs 31 upward to thus tilt up the display 9 gradually. Subsequently,when the display 9 is further tilted upwardly, the rotators 29 thencontact to the ribs 30 of the first hood 22 and then roll along the ribs30 to thus push up the first hood 22. Consequently, the first hood 22can be pushed up against the spring force of the closing spring 26 to berotated upwardly, so that the whole hood 17 can be separated from theopening portion 13 to thus open the opening portion 13.

Since the rotators 29 and the ribs 30, 31 are provided, friction betweenthe display 9 and the hood 17 can be reduced smaller and therefore asmooth operation of the retractable setting-up structure can be assured.In addition, since the rotators 29 and the ribs 30, 31 have their smallcontact areas, strange sound can be prevented from being generatedbetween them upon setting up the display 9.

With the above operation, as shown in FIG. 5, the display 9 can projectfrom the opening portion 13 to be set into its usable state (itsstanding state). In this standing state of the display 9, the secondhood 23 can be folded by the spring force of the closing spring 27 fromthe first hood 22 toward the display 9 so as to horizontally projectfrom the top end portion of the display 9 like a visor. Hence, the solarlight incident upon the compartment from the front window panel 2 cannotenter into the screen of the display 9, so that the screen of thedisplay 9 does not reflect such solar light at all to thus provide clearimages.

As shown in FIGS. 5 and 6, a set-up height of the hood 17 is set suchthat the top end of the hood 17 is located below a tangent line to thefront hood 33 of the car body extended from the eyepoint 32 of thedriver in the driver's seat.

The eyepoint 32 is a height of the eye of the driver in the driver'sseat in its rearmost seat position. As shown in FIG. 6, the set-up hood17 is designed to be positioned lower than such tangent line 34 to thefront hood 33 extended from the driver's eyepoint 32. Hence, since thehood 17, i.e., the display 9 is positioned below a lower limit of thedriver's front eyeshot when the driver is driving the car, the display 9never obstructs the driver's front eyeshot so that the wide fronteyeshot of the driver can be accomplished. As a result, even though thedisplay 9 is arranged on the upper surface of the instrument panel 1,the display 9 never interferes with the driving of the car.

FIGS. 7 and 8 show a retractable setting-up structure for a displayaccording to a modification of the first embodiment of the presentinvention. FIGS. 7 and 8 show an arrangement of the display 9 withrespect to a car body 35. In this modification, the display 9 providedon the upper surface of the instrument panel 1 is positioned obliquelyrelative to a longitudinal center line 36 of the car body 35. In otherwords, the display 9 is positioned obliquely relative to the driver'seyeshot, so that the driver can drive the car without obstruction of thedriver's front eyeshot. Like the above, there is no situation where thedisplay 9 interferes with the driving of the car.

(Second Embodiment)

Next, a second embodiment of the present invention will be explainedwith reference to FIGS. 9 to 12 hereunder.

In the second embodiment, only details of a display fitting structureand a retractable setting-up structure for a display are different fromthe above first embodiment of the present invention. Therefore, in FIGS.9 to 12, the same reference numerals are applied to the same constituentportions as those in the first embodiment and their redundantexplanation will be omitted in this disclosure.

FIG. 9 is a plan view showing a structure for setting-up/ retracting thedisplay 9 out of/into the case 8 according to the second embodiment ofthe present invention. FIG. 10 is a sectional view showing the structuretaken along an X--X line in FIG. 9. FIG. 11 is a sectional view showingthe structure taken along an XI--XI line in FIG. 9. FIG. 12 is asectional view showing the structure shown in FIG. 9 if viewed from thefront side of the vehicle. A block 41 and the display 9 are placed inthe case 8. The display 9 is put away in the case 8 such that the liquidcrystal panel 10 faces to the bottom surface 8a of the case 8.

A pair of right and left racks 42, 42 which are separated into right andleft sides are provided on the bottom surface 8a of the case 8. A pairof racks 42, 42 are placed to extend in the back/forth direction, i.e.,vertical direction of the case 8. The block 41 is installed to be movedalong the racks 42 in the vertical direction.

A motor 43 serving as a rotational driving source and a pair of rightand left gears 44, 44 connected to the motor 43 are installed in theinside of the block 41. A pair of gears 44, 44 are fitted rotatably tothe gear shaft 46 which is provided across the block 41 in theright/left direction, i.e., lateral direction, and are also engaged withthe racks 42, 42 respectively.

One of the gears 44 is connected to the motor 43 via a rotation axis 43aof the motor 43 and a plurality of reduction gears 45 arranged betweenthe gear 44 and the rotation axis 43a. When the motor 43 is rotated, thegears 44 are also rotated via the reduction gears 45. The gears 44, whenrotated, move along the racks 42, so that the block 41 can be movedreciprocally along the vertical direction of the case 8.

While being coupled to the block 41, the display 9 is arranged in frontof the block 41. The display 9 and the block 41 are connected by pins47, 47 which are projected from both rear end side surfaces of thedisplay 9. In other words, such pins 47, 47 are provided to penetratefront end portions of both side walls of the block 41 respectively andas a result the display 9 can be supported rotatably by the block 41.

Slide rails 48 which have cam grooves 49 respectively are formed onright/left inner side surfaces of the case 8. The pins 47 are insertedinto the cam grooves 49 of the slide rails respectively. Moreparticularly, the pins 47 are inserted tightly into the cam grooves 49such that they can be slid along the cam grooves 49 with respectivefriction forces.

As shown in FIGS. 10 and 11, the cam grooves 49 of the slide rails 48include lying holding portions 50 formed on the rear side of the case 8horizontally to hold the display 9 in its lying state via the pins 47,standing holding portions 51 formed on the front side of the case 8horizontally to hold the display 9 in its standing state via the pins47, and guiding portions 52 formed to connect the lying holding portions50 and the standing holding portions 51 and along which the pins 47 areshifted upward and downward according to their lateral movement.

The standing holding portions 51 are formed to be positioned higher thanthe lying holding portions 50. The guiding portions 52 are formed toincline upward-obliquely from the rear side to the front side of thecase 8 to connect the lying holding portions 50 and the standing holdingportions 51. Therefore, the pins 47 inserted into the cam grooves 49 areshifted upward along the guiding portions 52 when the block 41 is movedtoward the front side of the case 8, and similarly the pins 47 areshifted downward along the guiding portions 52 when the block 41 ismoved toward the rear side of the case 8.

At that time, the pins 47 are also shifted upward and downward withrespect to the block 41. In order to make sure such up/down movement ofthe pins 47 relative to the block 41, vertical guide grooves 53 areformed on both side surfaces of the block 41. The pins 47 are passedthrough the vertical guide grooves 53.

The display 9 is connected to the case 8 via links 54. The links 54 candisplace the display 9 with respect to the case 8 such that the display9 is brought into its lying state when the block 41 is positioned at therear side of the case 8 whereas the display 9 is brought into itsstanding state when the block 41, i.e., the display 9, is moved towardsthe front side of the case 8.

Horizontal axes 55 are provided to project from right and left sidesurfaces of the block 41 respectively. The horizontal axes 55 are theninserted into horizontal grooves 56 which are formed at correspondingpositions on inner surfaces of the case 8 respectively. The horizontalgrooves 56 extend along the vertical direction of the case 8. With themovement of the block 41, the horizontal axes 55 can be moved back andforth in the horizontal grooves 56.

In this manner, since the horizontal axes 55 are inserted into thehorizontal grooves 56, the block 41 cannot displace in the verticaldirection but can move in the back and forth direction only. As aresult, lift-up of the block 41 can be prevented. In other words, thehorizontal axes 55 and the horizontal grooves 56 can operate as alift-up preventing mechanism for preventing the lift-up of the block 41.Therefore, setting-up of the display 9 can be carried out smoothlybecause the block 41 is not lifted up at all when the display 9 is setupright.

Next, an operation of the above-mentioned structure will be explainedhereunder.

A solid line in FIG. 10 shows a state where the display 9 is put away tobe laid in the case 8. In this state, the block 41 is positioned in therear side of the case. The pins 47 are positioned in the lying holdingportions 50 of the cam grooves 49 of the slide rails 48. At this time,unexpected movement of the pins 47 can be prevented by friction forceswhich are generated between the lying holding portions 50 and the pins47. Accordingly, play of the pins 47 in the lying holding portions 50can be eliminated, so that the display 9 can be held stably in its lyingstate via the pins 47.

When the motor 43 is activated, the gears 44 can be rotated whileengaging with the racks 42. The overall block 41 can thus be movedforward in the case 8 according to such rotation of the gears 44.

According to the movement of the block 41, the display 9 is pushedforward and also the pins 47 can be slid in the cam grooves 49 of theslide rails 48. In other words, the pins 47 can slide so as to move fromthe lying holding portions 50 to the guiding portions 52.

At this time, the pins 47 are pushed up gradually because the guidingportions 52 are inclined upwardly. At the same time, a top end portion9a of the display 9 can be displaced so as to be rotated upward andbackward simultaneously because position of the display 9 can beregulated by the links 54. As a result, the top end portion 9a of thedisplay 9 can be pushed out from the case 8 and thus the display 9 canbe set up gradually into its standing state. When the pins 47 reach topends of the guiding portions 52, the display 9 can be pushed out fromthe case 8 completely and set upright on the case 8 as shown in a chainline. During such standing operation of the display 9, the block 41 canbe held in its horizontal state by the horizontal axes 55 and thehorizontal grooves 56 so as to assist the smooth setting-up operation ofthe display 9.

When the motor 43 is further activated, the pins 47 can be moved intothe standing holding portions 51 of the cam grooves 49. Since the pins47 cannot moved inadvertently in the standing holding portions 51because of friction forces, the display 9 can be maintained stably inits standing state.

The motor 43 must be rotated reversely when the display 9 is to be putaway in the case 8. At that time, respective mechanisms mentioned aboveare operated in reverse order so that the display 9 can be easily putaway.

What is claimed is:
 1. A retractable setting-up structure for a display,including a display panel, the display being supported within a casesuch that the display has an accommodated state and a standing state,the display panel being put downward away when the display is in theaccommodated state, and the display panel being stood up to be watchedwhen the display is in the standing state said retractable setting-upstructure comprising:a pin member configured to rotatable connect thedisplay to the case; a slide rail into which the pin member is slidablyreceived, the slide rail guiding the pin member to move back and forthand upward and downward; and a driving source for reciprocally movingthe pin member back and forth; wherein the slide rail includes a lyingholding portion, a guiding portion, and a standing holding portion, thelying holding portion being configured to hold the display in theaccommodated state via the pin member, the pin member is displacedupward and downward along the guiding portion according to lateralmovement of the pin member within the slide rail, and the standingholding portion being configured to hold the display in the standingstate via the pin member.
 2. A retractable setting-up structure for adisplay according to claim 1, whereinthe standing holding portion isplaced at higher position than the holding portion.
 3. A retractablesetting-up structure for a display according to claim 1, whereinthedriving source is a block including a motor therein, the block isengaged with the pin member, and the block, when located inside thecase, is moved reciprocally back and forth in the inside of the casewhen it is driven by the motor.
 4. A retractable setting-up structurefor a display according to claim 3, further comprising:a rack adapted tobe located on a bottom of the case so as to extend along a back andforth direction of the case; and a gear connected with the motor andengaged with the rack.
 5. A retractable setting-up structure for adisplay according to claim 3, further comprising:a lift-up preventingmechanism adapted to be located between the block and the case toprevent lift-up of the block when the display is in the standing state.6. A retractable setting-up structure for a display according to claim5, whereinthe lift-up preventing mechanism is composed of a horizontalaxis and a horizontal groove, the horizontal axis is formed to projectfrom side surface of the block.
 7. A retractable setting-up structurefor a display according to claim 3, whereina vertical guide groove isformed on the block, and the pin member is engaged with the verticalguide groove.